taylorngibson taylorngibson

23-05-2017
Mathematics

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ALGEBRA 1. WILL GIVE BRAINLIEST.
The sum of the measures of two angles is 180°. The difference between the angle measures is 70°. What is the measure of the smaller angle?

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23-05-2017

A + B = 180
A - B = 70
therefore:
A = B + 70
(B + 70) + B = 180 by substitution
2B = 110
B = 55
A = 180 - 55

B is smallest angle at 55 degrees

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